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Finding the Fourth Proportional to 150,859.47, 208,162.95 and 87,184.98

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Solution

The fourth proportional to 150,859.47, 208,162.95 and 87,184.98 is: 120,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,859.47 : 208,162.95 = 87,184.98 : x
  2. Step 2: Convert to fraction form
    150,859.47/208,162.95 = 87,184.98/x
  3. Step 3: Cross multiply
    150,859.47x = 208,162.95 × 87,184.98
  4. Step 4: Simplify right side
    150,859.47x = 18,148,682,632.49
  5. Step 5: Solve for x
    x = 18,148,682,632.49/150,859.47
  6. Step 6: Final answer
    x = 120,301.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.